What if the question is not what I want, but what my grandparents or parents want. I have multiple relatives in their 80s. While they have slowed down, they are still very active and mentally sharp. Older folks have often acquired significant wisdom and experience and have learned to delegate responsibility.
Biden has been know for gaffes for his entire career. While none of us can predict the future, a simple life expectancy calculator suggests that Biden is highly likely to finish a second term and will probably live to his mid 90s.